Migration can not be started: Failed to connect to target Plesk server by Plesk API Plesk error 1006 Access to API is disabled

Symptoms

• Plesk shows the following error in starting the migration, where 203.0.113.2 is the IP-Address of the target server:

  PLESK_ERROR: Failed to connect to target Plesk server by Plesk API: Plesk error [1006]: Access to API is disabled for 203.0.113.2

• It is possible to telnet to the destination server on 8443 port locally and remotely. For example:

  # telnet 203.0.113.3 8443
  Trying 203.0.113.3…
  Connected to 203.0.113.3.
  Escape character is ‘^]’.

• There are the following record in Migration debug log file:

  • Logfile location on Windows: %plesk_dir%varmodulespanel-migratorsessions/<date_of_session>/debug.log

  • Logfile location on Linux: /usr/local/psa/var/modules/panel-migrator/sessions/<date_of_session>/debug.log

• +|2018-05-22_13:07:19,862|D|MT|core.utils.common.http_xml_client|||API request to https://203.0.113.2:8443/enterprise/control/agent.php
  +|2018-05-22_13:07:19,862|D|MT|core.utils.common.http_xml_client|||Request XML: 
  =|2018-05-22_13:07:19,862|D|MT|core.utils.common.http_xml_client|||<?xml version="1.0" encoding="utf-8"?> 
  =|2018-05-22_13:07:19,862|D|MT|core.utils.common.http_xml_client|||<packet version="1.5.2.1"> 
  =|2018-05-22_13:07:19,862|D|MT|core.utils.common.http_xml_client||| <server> 
  =|2018-05-22_13:07:19,862|D|MT|core.utils.common.http_xml_client||| <get> 
  =|2018-05-22_13:07:19,862|D|MT|core.utils.common.http_xml_client||| <stat/> 
  =|2018-05-22_13:07:19,862|D|MT|core.utils.common.http_xml_client||| </get> 
  =|2018-05-22_13:07:19,862|D|MT|core.utils.common.http_xml_client||| </server> 
  =|2018-05-22_13:07:19,862|D|MT|core.utils.common.http_xml_client|||</packet> 
  =|2018-05-22_13:07:19,862|D|MT|core.utils.common.http_xml_client||| 
  +|2018-05-22_13:07:20,003|D|MT|core.utils.common.http_xml_client|||Response: 
  =|2018-05-22_13:07:20,003|D|MT|core.utils.common.http_xml_client|||<packet version="1.5.2.1"> 
  =|2018-05-22_13:07:20,003|D|MT|core.utils.common.http_xml_client||| <system> 
  =|2018-05-22_13:07:20,003|D|MT|core.utils.common.http_xml_client||| <status>error</status> 
  =|2018-05-22_13:07:20,003|D|MT|core.utils.common.http_xml_client||| <errcode>1006</errcode> 
  =|2018-05-22_13:07:20,003|D|MT|core.utils.common.http_xml_client||| <errtext>Access to API is disabled for 203.0.113.2</errtext> 
  =|2018-05-22_13:07:20,003|D|MT|core.utils.common.http_xml_client||| </system> </packet>

• Plesk IP access policy is configured at Plesk > Tools & Settings > Restrict Administrative Access on the target server.

Cause

The target server is not accessible by Plesk API locally.

Resolution

From Plesk:

1. Log into Plesk (target);

2. Go to Tools & Settings > IP Access Restriction Management (under “Security”) > Settings > select > Add Network > add the IP address of the target server.

From SSH:

1. Connect to…